Light-storing self-luminous materials are also called light-generating ultra-long afterglow light-storing materials, non-radioactive light-storing materials, and power-free self-luminous materials. The material actively absorbs and stores sunlight, light, ultraviolet light, stray light and other vis

The function and role of signage. First: signage has the function of marking (SIGN), signage is mainly through the visual to show its role, for example, the text conveys, the mark is with symbolic, directional, suggestive and so on. The text style can show the character, background. Shape and mark t

Evacuation safety risks in subway interval tunnelsInter-district tunnels are relatively closed spaces, connected to the station at both ends of the tunnel, with a general length of 1200m and various pipelines set up on both sides of the tunnel side walls. Due to the constraints of the tunnel section

Evacuation safety risks in subway interval tunnelsInter-district tunnels are relatively closed spaces, connected to the station at both ends of the tunnel, with a general length of 1200m and various pipelines set up on both sides of the tunnel side walls. Due to the constraints of the tunnel section